“For if you live according to the flesh you will die, but if by the Spirit you put to death the deeds of the body, you will live.” Romans 8:13
Let no man think to kill sin with few, easy, or gentle strokes. He who hath once smitten a serpent, if he follow not on his blow until it be slain, may repent that ever he began the quarrel. And so he who undertakes to deal with sin, and pursues it not constantly to the death.
~ Richard Baxter